Metadata: Identification_Information: Citation: Citation_Information: Originator: Peter Dartnell Originator: Janet T. Watt Originator: Jenna C. Hill Originator: James E. Conrad Publication_Date: 20231130 Title: Polygon shapefile of data sources used to create a composite multibeam bathymetry surface of the central Cascadia Margin offshore Oregon Geospatial_Data_Presentation_Form: polygon Shapefile Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9PERGFK Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9PERGFK Larger_Work_Citation: Citation_Information: Originator: Peter Dartnell Originator: Janet T. Watt Originator: Jenna C. Hill Originator: James E. Conrad Publication_Date: 2023 Title: Composite multibeam bathymetry surface and data sources of the central Cascadia Margin offshore Oregon Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9PERGFK Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested Citation: Dartnell, P., Watt, J.T., Hill, J.C., and Conrad, J.E., 2023, Composite multibeam bathymetry surface and data sources of the central Cascadia Margin offshore Oregon: U.S. Geological Survey data release, https://doi.org/10.5066/P9PERGFK. Online_Linkage: https://doi.org/10.5066/P9PERGFK Description: Abstract: Data from various sources, including 2018 and 2019 multibeam bathymetry data collected by the National Oceanic and Atmospheric Administration (NOAA) and the U.S. Geological Survey (USGS) were combined to create a composite 30-m resolution multibeam bathymetry surface of central Cascadia Margin offshore Oregon. These metadata describe the polygon shapefile that outlines and identifies each publicly available bathymetric dataset. The data are available as a polygon shapefile. Purpose: In 2018 and 2019 the NOAA ships Rainier and Fairweather collected multibeam bathymetry data in 4 areas along the central Cascadia Margin offshore Oregon as part of a cooperative project between the U.S. Geological Survey, Pacific Coastal and Marine Science Center and NOAA. These regions were combined with other publicly available multibeam bathymetry data. The surface was generated to assist research projects studying offshore geohazards including mapping faults, submarine landslides, sediment transport pathways, and seafloor seeps. These data are not intended to be used for navigation. Supplemental_Information: Additional information about the USGS field activities from which some of these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2018-642-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-636-FA Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in Esri format, this metadata file may include some Esri-specific terminology. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1998 Ending_Date: 2021 Currentness_Reference: ground condition at time data were collected. Status: Progress: Complete Maintenance_and_Update_Frequency: None Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -126.156 East_Bounding_Coordinate: -124.093 North_Bounding_Coordinate: 46.607 South_Bounding_Coordinate: 43.408 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:b9e35052-1435-4beb-9de6-561b659943ea Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: bathymetry Theme_Keyword: bathymetry measurement Theme_Keyword: sea-floor characteristics Theme_Keyword: geospatial datasets Theme_Keyword: marine geophysics Theme_Keyword: multibeam sonar Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Bathymetry and Elevation Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: seabed Theme_Keyword: field observation Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: State of Oregon Place_Keyword: State of Washington Access_Constraints: None Use_Constraints: USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originators of the dataset and in products derived from these data. Portions of the map used data provided by the Ocean Exploration Trust’s Nautilus Exploration Program, Cruises NA072, NA080, NA082, NA088, NA095, NA122, NA128, NA130. This composite bathymetry grid is intended for research purposes only, studying the seafloor morphology of the central Cascadia margin. The bathymetry grid is not intended to be used for navigation. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: CentralCascadia_composite_bathymetry_data_sources_QV Browse_Graphic_File_Description: Quick view image of the central Cascadia Margin composite multibeam bathymetry data source polygons Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Caris HIPS and SIPS (ver. 11) and ArcMap (ver. 10.3.1) on a Windows 10 computer. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Polygons were hand drawn around each individual multibeam bathymetry surface. Logical_Consistency_Report: No formal logical accuracy tests were conducted. Completeness_Report: Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The composite multibeam bathymetry surface was generated from a combination of dedicated multibeam surveys, processed bathymetry surfaces received from other institutions, as well as transit data (ancillary data collected while a ship was underway). The bathymetry data were collected over a span of nearly 18 years using a variety of models of multibeam echosounders, GPS systems, position and motion compensation systems, sound velocity profilers, and tide measurements. Polygons were hand drawn around each individual multibeam bathymetry surface. Lineage: Process_Step: Process_Description: The Ocean Exploration Trust's, Nautilus Exploration Program collected multibeam echosounder data along the central Cascadia Margin between 2016 and 2022 (OET survey ID's NA072, NA080, NA082, NA088, NA095, NA122, NA128, NA130). The U.S. Geological Survey Pacific Coastal and Marine Science Center requested and received both raw line files and processed grids as well as processed raw line files avaiable from NOAA, National Centers for Environmental Information, https://ngdc.noaa.gov/mgg/bathymetry/multibeam.html). Raw survey line files were imported and processed in Caris HIPS and SIPS software (version 11). The data were gridded into 30-m surfaces and exported as geoTIFF's or ASCIIRaster files and imported into ArcMap. Process_Date: 2022 Process_Step: Process_Description: Publicly available multibeam echosounder data available from NOAA, National Centers for Environmental Information were downloaded from https://ngdc.noaa.gov/mgg/bathymetry/multibeam.html. Survey IDs include TN149, TN173, TN265, KM1812, FK180731, FK180824, FK190612, RR1807, SKQ201607, SMGL2104, MGL1216, AT26-16, AT26-17, TN312. The raw survey and transit line files were imported and processed in Caris HIPS and SIPS software (version 11). The data were gridded into 30-m surfaces and exported as geoTIFF or ASCIIRaster files and imported into ArcMAP. Process_Date: 2022 Process_Step: Process_Description: Processed multibeam bathymetry grids from Monterey Bay Aquarium Research Institute (MBARI) were downloaded as ASCIIRaster files from http://www3.mbari.org/data/mapping/NorCal_Oregon_Margin/oregon_a.htm(OregonMarginB-I.asc). The bathymetry data were imported into ArcMap and projected from geographic coordinates to UTM, zone 10, WGS84 coordinates. The UTM grid was reprojected to UTM, zone 10, NAD83 coordinates and resampled to 30-m resolution. Process_Date: 2021 Process_Step: Process_Description: Accessed processed multibeam bathymetry data collected by the USGS during field activity 2014-607-FA. Cochrane, G.R., Dartnell, P., Hemery, L.G., and Hatcher, G., 2017, Data release for USGS field activity 2014-607-FA, Oregon OCS seafloor mapping: selected lease blocks relevant to renewable energy (ver. 2.0, July 2017), U.S. Geological Survey data release, https://doi.org/10.5066/F7V40S8V. Process_Date: 2021 Process_Step: Process_Description: In 2018 and 2019 the NOAA ships Rainier and Fairweather mapped four regions along the central Cascadia Margin (NOAA survey IDs H13119, H13137, H13118, W00474) using Kongsberg EM-710 multibeam echosounders. These bathymetry surfaces are available from NOAA, National Centers for Environmental Information and were downloaded from https://ngdc.noaa.gov/mgg/bathymetry/multibeam.html as BAG files. The BAG files were imported into Caris HIPS and SIPS, version 11 and converted to LAS files. The files were imported into ArcMap, version 10.8.1 and converted to grids. Process_Date: 2022 Process_Step: Process_Description: If needed, the previously described bathymetry grids were projected to a common horizontal datum (NAD83) using the "Project Raster" tool in ArcToolbox. Also, if needed, the grids were downsampled to 30-m spatial resolution using the "Resample" tool in ArcMap using the bilinear resampling technique. The grids were then merged together using the "Mosaic to New Raster" tool in ArcMap using the "first" mosaic operator. Priority was given to recent dedicated surveys, then older dedicated surveys followed by cleaner transit data and then noisier transit data. The merged grid was exported as a geoTIFF file. Process_Date: 2022 Process_Step: Process_Description: Polygons were hand drawn around each individual multibeam bathymetry surface and attributes were added to each polygon including ship name, cruise ID, multibeam system, year, data source URL, and difference calculations. Process_Date: 2023 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 46 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 10 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -123.00000 Latitude_of_Projection_Origin: 0.00000 False_Easting: 500000.0 False_Northing: 0.00 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.1 Ordinate_Resolution: 0.1 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: NAD83 Ellipsoid_Name: GRS80 Semi-major_Axis: 6378137.00 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: CentralCascadia_composite_bathymetry_UTM10_NAD83_data_sources.shp Entity_Type_Definition: Table containing attribute information associated with the data set. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: Esri Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 45 Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: shape defining the features. Attribute: Attribute_Label: ObjectID Attribute_Definition: Feature geometry. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: polygon number Attribute: Attribute_Label: Ship Attribute_Definition: name of the survey vessel Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: name of the survey vessel Attribute: Attribute_Label: Multibeam Attribute_Definition: multibeam system used to collect data Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: type and model of various instrument(s) used to collect the multibeam data on each cruise Attribute: Attribute_Label: Year Attribute_Definition: Year of data collection Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1998 Range_Domain_Maximum: 2021 Attribute: Attribute_Label: Organizati Attribute_Definition: Group, Organization, Agency, Program, or Project that collected the data Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Group, Organization, Agency, Program, or Project that collected the data Attribute: Attribute_Label: Cruise_ID Attribute_Definition: Cruise ID Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: unique cruise identification assigned by each institution Attribute: Attribute_Label: Source Attribute_Definition: description of data source including URL Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: description of data source including URL Attribute: Attribute_Label: Diff_Bathy Attribute_Definition: Overlapping datasets used in difference calculations Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Overlapping datasets used in difference calculations Attribute: Attribute_Label: Diff_mean Attribute_Definition: Mean difference between overlapping datasets Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -5.52 Range_Domain_Maximum: 8.41 Attribute: Attribute_Label: Diff_stddv Attribute_Definition: Standard deviation between overlapping datasets Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.28 Range_Domain_Maximum: 15.79 Overview_Description: Entity_and_Attribute_Overview: zipped file of polygon shapefile Entity_and_Attribute_Detail_Citation: U.S. Geological Survey Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - CMGDS Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Resource_Description: These data are available in ESRI shapefile format contained in a single zip file (CentralCascadia_composite_bathymetry_UTM10_NAD83_data_sources.zip) accompanied by CSDGM FGDC-compliant metadata.] Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile Format_Version_Number: ArcMap (version 10.3.1) Format_Specification: Esri polygon shapefile Format_Information_Content: Downloadable zip file contains a shapefile of multibeam sources. File_Decompression_Technique: WinZip Transfer_Size: 0.3968 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9PERGFK Access_Instructions: Data can be downloaded using the Network_Resource_Name link and scrolling down to the Sonar Data section. Fees: None. Technical_Prerequisites: The downloadable data file has been compressed with the "zip" command and can be unzipped with Winzip (or other tool) on Windows systems. To utilize these data, the user must have software capable of uncompressing the WinZip file and importing and viewing a shapefile file. Metadata_Reference_Information: Metadata_Date: 20231130 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998